Module 1 A Science Toolkit Review Physics

What is a possible explanation for a problem using what you know and have observed called?

• Observation

• Model

• Experiment

• Hypothesis

What is a representation of an idea, event, structure, or object that helps people better understand it?

• Hypothesis

• Theory

• Model

• Law

Which of the following is an explanation of things or events based on knowledge gained from many observations and investigations?

• Hypothesis

• Theory

• Model

• Law

Which of the following is a statement about what happens in nature and seems to be true all the time?

• Hypothesis

• Theory

• Model

• Law

Which of the following is NOT a limitation of science?

• Science cannot explain or solve every question.

• Scientific questions must be testable and verifiable.

• Science can answer questions about opinions, values, and emotions.

• Science cannot answer questions that are not testable.

What is the first step for an investigation that follows a scientific method?

• Making observations

• Forming a hypothesis

• Conducting experiments

• Drawing conclusions

What is the difference between a theory and a law?

• A theory explains why or how something happens, while a law only describes what happens

• A theory is based on observations, while a law is based on experiments

• A theory is a proven explanation, while a law is a possible explanation.

• A theory is more reliable than a law.

What is dimensional analysis?

• A method of treating units as algebraic quantities that can be canceled.

• The study of different dimensions in physics.

• The analysis of mathematical equations in physics.

• The analysis of physical dimensions in mathematics.

What is the SI system of measurement?

• An adaptation of the metric system used by the worldwide scientific community.

• A system of measurement used only in physics.

• A system of measurement used only in mathematics

• An ancient system of measurement.

How many significant figures are in the measurement 5.00 mL?

• 1

• 2

• 3

• 4